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Finding the Fourth Proportional to 418,238.52, 577,171.50 and 227,253.48

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Solution

The fourth proportional to 418,238.52, 577,171.50 and 227,253.48 is: 313,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,238.52 : 577,171.50 = 227,253.48 : x
  2. Step 2: Convert to fraction form
    418,238.52/577,171.50 = 227,253.48/x
  3. Step 3: Cross multiply
    418,238.52x = 577,171.50 × 227,253.48
  4. Step 4: Simplify right side
    418,238.52x = 131,164,231,931.82
  5. Step 5: Solve for x
    x = 131,164,231,931.82/418,238.52
  6. Step 6: Final answer
    x = 313,611.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.